Anti-corrosion and noise reduction chimney for ships

Abstract

The invention discloses a novel anti-corrosion and noise-reducing chimney for ships, which includes a chimney for discharging exhaust gas, a conversion device arranged at the central axis of the chimney for converting kinetic energy of exhaust gas into electric energy, and a conversion device arranged on the inner wall of the chimney for Internal cooling device for reducing the internal temperature and smoke of the chimney, noise reduction device for reducing the noise of the chimney, external cooling device installed on the outer wall of the chimney, heat insulation layer installed on the surface of the external cooling device, used for purifying and recycling the cooling liquid Circulation purification device and controller, the present invention effectively reduces the internal and external temperature of the chimney through multi-stage cooling, and conducts visual real-time control and adjustment of the chimney temperature through the detection and control system, effectively solving the problem of high temperature corrosion, and reducing the chimney exhaust by setting the muffler device noise, and fully recover and utilize the energy of the exhausted flue gas. By changing the coolant medium, the harmful substances and smoke in the exhaust gas can be effectively removed.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to an anti-corrosion and noise-reducing chimney for ships. Background technique [0002] With the development of the country's economy, ships have become one of the main means of transportation by virtue of the advantages of large capacity, low freight and international transportation. The flue gas temperature is high and the pressure is high, the exhaust temperature of the main engine of the ship and the diesel engine of the power station is often as high as 500 ℃, and the surface of the exhaust pipe is easily corroded and damaged in the harsh environment of high temperature oxidation and seawater salt spray erosion, reducing the service life; In addition to high temperature and high pressure, the exhaust process is accompanied by huge noise, which has a huge impact on the health of the crew and has become the main source of ship noise. In order to solve the above problems, CN 10775...

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Problems solved by technology

[0003] The above-mentioned invention can reduce the temperature of the outer surface of the chimney and reduce the amount of smoke and dust, but there are still the following problems: 1. The cooling effect is limited only through the thermal fluid circulation, the temperature drop cannot be accurately controlled and adjusted, and the cooling effect is not obvious; 2. Due to the cooling The effect is not obvious and cannot effectively solve the problem of high-temperature corrosion of the chimney; 3. The problem of exhaust noise cannot be effectively solved; 4. The energy recovery rate is not high;

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